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Vendor Transparency Index

DoseCraft Vendor Transparency Index

We score peptide vendors on COA transparency, purity claims, and community trust. We earn affiliate revenue from some of them — we score everyone the same way. The rubric is public; affiliate rows are tagged; every claim is grounded in the source linked beneath.

The scoring rubric

COA transparency

40 pts
  • Pre-purchase COA access (public link or product page)15
  • Per-batch COA posting (not a single static document)10
  • Test method specified (HPLC / LC-MS / sterility)10
  • Freshness — most recent COA <6 months old5

Purity claims

25 pts
  • HPLC testing required (not optional)10
  • Mass Spec confirmation preferred10
  • Sterility / endotoxin testing5

Reputation

20 pts
  • Independent review aggregator score — Trustpilot weighted > self-hosted20

Operational legitimacy

15 pts
  • US-registered entity5
  • Verifiable physical address5
  • Payment-method diversity (card + crypto + bank)5

Total: 100 points. Independent aggregator scores (Trustpilot weighted above self-hosted reviews) feed the reputation axis.

Vendors (8 active)

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Methodology

How we score, when we update, and how vendors can dispute their rating.

Sources

Vendor-disclosed COAs, GMP certifications, independent review aggregators (Trustpilot, Sitejabber, ThePeptideList), public press releases, and BBB accreditation records. Aggregator scores are weighted by independence — third-party platforms score higher than self-hosted reviews.

Update cadence

Scores are re-verified on a rolling basis. Each entry shows its last verified date. Aggregator-driven shifts (review-score deltas, new COA postings) trigger a re-score on the affected vendor only.

Dispute a score

Vendors who believe their score does not reflect current documentation can request a re-review by emailing vendors@dosecraftapp.com with the COA, batch, and test-method evidence behind the requested change.

Scores reflect publicly available documentation and community aggregator signals at the time of verification. They are not lab test results, are not medical advice, and do not constitute an endorsement of any product for human use. Research describes the landscape; the buyer evaluates the evidence.

Last updated: 2026-05-11← Back to all tools

Why this exists. No vendor can publish a neutral comparison of itself against its competitors — the conflict of interest is structural. DoseCraft is a platform, not a vendor; we score every supplier on the same rubric, including the ones we have affiliate relationships with. If an affiliate scores poorly, the page says so. Trust is the long-term moat.

How we score. Every vendor gets points across four axes (COA transparency, purity claims, reputation, operational legitimacy). Each axis has explicit sub-criteria visible in the rubric block above the table. Total is out of 100. Scores update on a rolling basis as community ratings and COA freshness change.

What we don’t do.We don’t buy COAs ourselves; we don’t run lab tests; we don’t take payment to raise a score. Affiliate revenue influences which vendors we link to with referral URLs, not how they score. Research describes each vendor based on publicly available documentation and aggregator scores at the time of verification.

For research use only. Not for human consumption. Not evaluated by the FDA. Not intended to diagnose, treat, cure, or prevent any disease. DoseCraft is an informational tool — not medical advice.

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